This is my first post here in quite a while so hello everyone. Here are a few pics of my latest pet 600 from Bitteroot & Ed @ AHR. I've been doing some extensive loading, shooting, and bullet casting for this little guy and truly love this rifle. It weighs around 12 lbs. and is very accurate with my standard load of 155 grs H-4350 & a Woodleigh 900gr SP for 2050+ fps. I hope i've got the picture thing right

Try again with the photos!

there-----I think I got this time

Howdy and welcome.. You must not be "overkill" from sweden, as he would be in a pickle over an AHR getting there.

I'll look at the pics in a bit
jeffe

Thanks Jeffeosse-----not Sweden-----Iowa

EXCELLENT!! Another soldier from the "Corn Vortex"! Welcome Indeed! A beautiful rifle too! Seeing that beast makes me want to go out and shoot something!!

Here's a little video of what it did to my bullet box
http://www.youtube.com/watch?v=OpMUQ5Bz3ag
http://www.youtube.com/watch?v=De8QIMsi6dE

Awesome!!! video! The wood on that rifle is very nice. I love how you have it set up. The muzzle break seems to really help with the recoil.

Thanks ptaylor. Here's what the bullet looks like after 5' of water

Funny enough,
Rob, WHo invented the 600 OK, did this with a 585 nyati a couple years go.... after about 3 feet of eland

quote:

Originally posted by 600 Overkill:
Here's a little video of what it did to my bullet box

LMAO

I tried to build a bullet trap for the 550 express, and had simular results!!

Nice! I think RIP has the right idea as far as a "Bullet Box" for penetration testing. I think it's best moved with a forklift.

You might consider one like I did.


That is ONE handsome rifle.

24"X24"x96" long, made out of two sheets of 1/2" plywood. Oh, heah, buy a decent metal detector at the pawn shop on your way home. Frame is 2"x2"'s and no nails or screws are used. It is doweled together on three sides and the lid is held on with straps (like to hold your 4-wheeler on the trailer.
You fill it half full of sawdust, and then pour in used motor oil until it is like library paste...fill it the rest of the way up and add more oil. Cut a 12" round hole in one end and make that a slide in from the top. I got a truck innertube and cut stretched it over the hole. I cut slits about every 1/2" about 10" long in it and set it over the end. You can tape a target with a 4" bull in the center and shoot 5-6 rounds. When you go get the bullets you unstrap the lid and take it off. The metal detector will find the slugs, and a pair of those long yellow rubber gloves come in handy to fish them out. My new one might have removable spacers every foot or so. Do more of the end caps with the innertube and make a grooved rib to space them. A Lott will go about 40"-44".

The only thing, make sure you have a way to transport...this is HEAVY!!!! The original was for indoors.

Rich
DRSS
Knowledge not shared is knowledge lost...

Sounds like a lot of work Rich!! Do you have a Haz Mat permit for all that toxic sludge you created?!?!

Beautiful rifle.

Mac,
This unit breaks down into three sections (three feet long each section) that telescope together, stainless steel pre-drilled square tubing of three different diameters. The largest diameter tubing is at the impact end and the smallest diameter tubing at the low-pressure recovery end.

I usually just take the terminal 3-foot section off and load it in the back of the pickup, two pieces that I can handle myself. Wingnuts and bolts make it QD for field assembly, finger tight.

Plastic trash compactor bags hold about 4 gallons of water in each of 12 compartments. Parachute cord is strung along the sides to keep the water bags from bulging too much and wasting water on the fillup.

The depth of each compartment is 8 inches and that total is 1/2", 1", or 1.5" inch of plywood board sandwich with waterbag thickness then being 7.5", 7", or 6.5"

0.5:7.5 ratio = Buffalo Texas Heart Shot or Elephant Broadside Body Shot

1:7 ratio = Elephant Skull Shot

1.5:6.5 ratio = 50 BMG AP Blacktip stopper (add 4" thickness of steel plate instead of the 4" sandwich of boards shown here at the terminal end of the Iron Buffalo)
Actually I will not shoot roundnose or spitzer solids into this. FN's are the only solids that go straight. Round Nose Solids veer off course after only 2 or 3 compartments and damage the side members exiting the sides. Expanding bullets go straight, but go less than half as far as a good FN solid.

quote:

Originally posted by ptaylor:
Awesome!!! video! The wood on that rifle is very nice. I love how you have it set up. The muzzle break seems to really help with the recoil.

yeh, my brother & his son were running the cameras. If you look closely at the video from my left side, you will see the side panel get blown off about 20' to the left. That top-bottom brake they use is much quieter from the sides and is very effective. There is really no muzzle flip, just straight back. I move back just rolling with the recoil. The felt recoil on this is much gentler than some of the faster sub-calibers that seem to rattle your fillings. That said, you still know you just let something big go when that trigger breaks.

600 Overkill

GREAT Rifle
GREAT Video
GREAT Bullet test.

There is nothing like shooting them BIG guns eah?

Cheers,

André

.600 Overkill- Good name and welcome. Yup, I'm the guy who invented this creature and am very proud of it. Most of the early work went on here on the site in fact. It was originally designed to fix all the problems related to the .585 NYATI and it has achieved that goal plus some. There are better than 25 of these guns out there now and all plain get the job done. It's a very different animal at 2050fps than at 2300fps. Nevertheless, the best bullet stop I've found is a large critter, preferably a dangerous one at that. Most folks quit at 2250 fps because the recoil gets pretty fierce pretty quickly. Good luck-Rob

quote:

Originally posted by Robgunbuilder:
.600 Overkill- Good name and welcome. Yup, I'm the guy who invented this creature and am very proud of it. Most of the early work went on here on the site in fact. It was originally designed to fix all the problems related to the .585 NYATI and it has achieved that goal plus some. There are better than 25 of these guns out there now and all plain get the job done. It's a very different animal at 2050fps than at 2300fps. Nevertheless, the best bullet stop I've found is a large critter, preferably a dangerous one at that. Most folks quit at 2250 fps because the recoil gets pretty fierce pretty quickly. Good luck-Rob

Thanks Rob. I've seen your work on here for some time. Always fun to read. It's amaizing just how accurate this rifle is if you get past the recoil at the bench, which I don't feel is all that bad. Bitteroot & Ed @ AHR do a tremendous job w/ stock design and that brake really works. I haven't taken a load up past 2250 yet and probably won't. That 2050-2100 range shoots quite manageable, is accurate, and will deliver the mail on target.

.600 Overkill- If your comfortable at the 200fps level, then try IMR 4759 about 165 grs will work very nicely. You need a 24 inch drop tube and once fired cases are best. Yes, it's surprising how easy it is to shoot. I have the two original guns, the first on a CZ550 and the second on a GMA. I did all the metal work myself but you just can't beat ED's stockmaking. My CZ550 was proofed with a load I won't even mention here as at the time I had to question if that action could survive this cartridge. After over 500 rds through it, the headspace remains unchanged with no lug set back, so I think that question is answered.
Pretty soon we will have to start a .600 Overkill registry and maybe sponsor a red neck weekend up at my ranch in Ca.-rob

That IS one beautiful rifle....but did I miss something......where's the RECOIL pad.....OUCH!!!

Gary
DRSS
NRA Lifer
SCI
DSC

quote:

Originally posted by GarBy:
That IS one beautiful rifle....but did I miss something......where's the RECOIL pad.....OUCH!!!

Gary
DRSS
NRA Lifer
SCI
DSC

Oh trust me it's on there. Bitteroot uses the Pachmyer Decel. but tinkers with it a little for more give.

Rob--I like the idea of a 600 club. I have done a bunch of load testing w/ many powders and bullet speeds for both the OK & the 600JDJ. These big round are just fun once you get on to their habits from being so big. I shot a Spanish ram last year w/ the JDJ loaded to 1950 fps. Unbelievable destruction on a lengthwise shot wit the Woodleigh SP. Here is one of my cast practice bullets I load to 1500 fps. Very accurate & hard hitting. I have a more pointed mold being made right now for the Bolt gun

quote:

600 club

I am sure it will be funner than the "700 Club"

Congrats on such a beautiful gun and the cahones to go big

Nice rifle! I still have "sellers remorse" over getting rid of my .600OK barrel, dies and brass. Maybe someday I'll complete a .600ok

John

the only thing that dont like in your rifle is that is not mine rifle......Congratulation and enjoy it.Regards Guillermo.

In my arsenal, I have a Heym .600NE. I use the same loads in it as my .600OK. The Heym is just plain painfull to shoot more than three rounds. It kicks the snot out of me! No one else will shoot it. No brake and a recoil pad so hard a metal plate is soft in comparison. In comparison with exactly the same load the .600Ok is easy to shoot and my friends just love it. The 600 club does sound like it could be fun. -Rob

My hat is off to RGB for this cartridge!! Even more, backing his dream with the $$$ to make it happen.

Rich
DRSS
Knowledge not shared is knowledge lost...

600 OK ---AHR, Ed and Bitterroot did a great job on the stock. Just plain beautiful--on a hunting rifle.
Question for 600 OK and Jeffeosso: With the high expansion rate of the Woodleigh 900 gr SP at 2050 fps, is this a viable bullet on buff at 2150-2300 fps??? Or will it start to fragment?? Is the next option the X-bullet or other expanding monolithic bullets? Had intended to use it on a 600 OK or 585 AHR.

Dak

quote:

Originally posted by dakota45056:
600 OK ---AHR, Ed and Bitterroot did a great job on the stock. Just plain beautiful--on a hunting rifle.
Question for 600 OK and Jeffeosso: With the high expansion rate of the Woodleigh 900 gr SP at 2050 fps, is this a viable bullet on buff at 2150-2300 fps??? Or will it start to fragment?? Is the next option the X-bullet or other expanding monolithic bullets? Had intended to use it on a 600 OK or 585 AHR.

Dak

SafariKid on here from around Sept. shows his use of AHR's new 600 cal X-type mono bullet that he loves on buf.It's around an 800-850grn. Looks like a monster for penetration with some expansion. I've been talking to Ed & Bitteroot all year and it looks like they have a winner in performance. Somwhere in the past, maybe I even have a pic of it, is a pic of SafariKid'd Woodleigh SP from a year or so ago on a buf. In fact the buf he killed is the one pictured w/ his 600 ok rifle on AHR's home page. But to answer your questions, yes somewhat. I have not shot a buf with mine yet, but at these higher-than-designed speeds, they do turn themselves inside out somewhat but they do definitely retain high % of weight even so. They don't break up, they just over-expand somewhat which will limit their penetration some.

The 900 gr woodleigh sp is probably not a great bullet for use on Buff. In my experience the penetration isn't great enough. On lighter animals it results in a wound channel that approximates shoving a beer can through live tissue. Small animals like deer exhibit a "hydraulic stop" effect that has to be seen to be believed. Man the thing is already .600 in diameter. The best bullets for Buff are pure brass flat nose cylindrical shapes that go straight through lengthwise. I do recomend the portugese heart shot with the .600 ok and flat nose brass bullets.
Now that I am the proud owner of a new Haas CNC lathe, I am currently also working on a expanding bullet for the .600Ok made of a copper alloy that is partially annealed. Results are promising and it will be interesting to see how well they actually work.-Rob

Ok I cant take this any more.. I got to have a .600 Overkill..
I just dont have the money right now..
I have sent an e-mail to AHR and they say that they can ship the rifle to sweden for me..
In a year or 2 I think that I am going to have one.

Robgunbuilder or .600 OK owners.. what does the brass (case?) cost from hornebear?? Is he the only one that make the cases??

//regards Overkill

Overkill,
Get the brass from AHR. It is Jameson high quality and Ed trims to length and bevels the bases slightly for better snap-over of the extractor. It is the best quality out there and costs about the same as everyone elses. E-mail Ed @ AHR and he can fill you in. I bought 100 last time. He usually has it in stock along with the dies & shell holders.

quote:

Originally posted by Robgunbuilder:
The 900 gr woodleigh sp is probably not a great bullet for use on Buff. In my experience the penetration isn't great enough. On lighter animals it results in a wound channel that approximates shoving a beer can through live tissue. Small animals like deer exhibit a "hydraulic stop" effect that has to be seen to be believed. Man the thing is already .600 in diameter. The best bullets for Buff are pure brass flat nose cylindrical shapes that go straight through lengthwise. I do recomend the portugese heart shot with the .600 ok and flat nose brass bullets.
Now that I am the proud owner of a new Haas CNC lathe, I am currently also working on a expanding bullet for the .600Ok made of a copper alloy that is partially annealed. Results are promising and it will be interesting to see how well they actually work.-Rob

Rob,
Keep us informed on your bullets. I'm thinking of a Bridger flat nose type or an expanding X type. I'm always looking at whats new.

Overkill- you buy a .600 ok rifle from AHR and I will personally deliver 100 pieces of brass to your door in Sweden. You buy the drinks. You do drink don't you?-Rob

Thanks for the info 600 Overkill!

robgunbuilder..
I will remeber that when I buy the .600
Sure I will buy the drinks
//Overkill

Rob
600 Ok

Has either of you guys tried Hawk bullets in either 900 or 1000 gr?

I know they have a bad rep as being too soft for dangerous game…

But for the $$$ I figured they’d make good plinkers/hog, bear, dear bullets…

I should be getting my 600 back from AHR next week and would like give the Hawks a spin…

Matt V.

Personally, I'd stay away from Hawk bullets. I just don't like the looks of them! In addition, there have been a few documented blown up guns that appear to be due to Hawk jackets staying in the barrel due to a secondary ignition effect. Since the .600Ok is a near perfect set-up for that, I stay away from Hawks period. I shoot only woodleighs, cast lead or monometal bullets in mine. -Rob

GREAT,ANOTHER 600 OVERKILL OWNER!Looks Great...I sold one of mine to a member here and ay sell the other one when my 700 Overkill gets here in a few weeks,not sure if I need both of them?!Now,lets go kill some trees!

quote:

Originally posted by trophyhunter5000:
Rob
600 Ok

Has either of you guys tried Hawk bullets in either 900 or 1000 gr?

I know they have a bad rep as being too soft for dangerous game…

But for the $$$ I figured they’d make good plinkers/hog, bear, dear bullets…

I should be getting my 600 back from AHR next week and would like give the Hawks a spin…

Matt V.

Matt,
I too have only used the Woodleighs and my own cast bullets to date. Bitterroot @ AHR is making a nice looking X-type but I have not shot then to date.

quote:

Originally posted by 600 Overkill:
Here's a little video of what it did to my bullet box
http://www.youtube.com/watch?v=OpMUQ5Bz3ag
http://www.youtube.com/watch?v=De8QIMsi6dE

Beautiful gun! From those videos, it looks like it would be about right for those big jackrabbits in the Southwest (such as the Browning BMG chambered rifle Elmer Keith used to shoot off the top of his car at the 2,000 meter jacks). Do you have jackrabbits in Iowa??

What kind of muzzle brake is that? Seems to tame the buck 'n' snort pretty well.....